A5006853161- Advanced biosensing and bioanalysis techniques
- DNA and Nucleic Acid Chemistry
- Fluorine in Organic Chemistry
- Catalytic C–H Functionalization Methods
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Radical Photochemical Reactions
- RNA Interference and Gene Delivery
- Energetic Materials and Combustion
- Perovskite Materials and Applications
- X-ray Diffraction in Crystallography
- Thermal and Kinetic Analysis
- Crystallization and Solubility Studies
- Nanocluster Synthesis and Applications
- Carbon and Quantum Dots Applications
- Sulfur-Based Synthesis Techniques
- Nanoparticle-Based Drug Delivery
- Inorganic Fluorides and Related Compounds
- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Lanthanide and Transition Metal Complexes
- Bone Tissue Engineering Materials
- Combustion and Detonation Processes
- Synthetic Organic Chemistry Methods
- Chemical Synthesis and Analysis
Xinyang Normal University
2018-2025
Southwest University
2019-2024
Chinese Academy of Sciences
2007-2022
Institutes of Science and Development
2017-2022
Xinyang College of Agriculture and Forestry
2018-2019
Jiangsu Normal University
2014-2016
National Science Library
2012-2015
Beijing National Laboratory for Molecular Sciences
2007-2011
University of Chinese Academy of Sciences
2007-2011
State Key Laboratory for Structural Chemistry of Unstable and Stable Species
2011
Abstract In organic solar cells (OSCs), cathode interfacial materials are generally designed with highly polar groups to increase the capability of lowering work function cathode. However, strong group could result in a high surface energy and poor physical contact at active layer surface, posing challenge for interlayer engineering address trade-off between device stability efficiency. Herein, we report hydrogen-bonding material, aliphatic amine-functionalized perylene-diimide (PDINN),...
Abstract Organic solar cells (OSCs) have experienced rapid progress with the innovation of near‐infrared (NIR)‐absorbing small‐molecular acceptors (SMAs), while unique electronic properties SMAs raise new challenges in relation to cathode engineering for effective electron collection. To address this issue, two fluorinated perylene‐diimides (PDIs), PDINN‐F and PDINN‐2F, are synthesized by a simple fluorination method, application as interlayer (CIL) materials. The bay‐fluorinated PDI‐based...
With the power conversion efficiency of binary polymer solar cells dramatically improved, thermal stability small-molecule acceptors raised main concerns on device operating stability. Here, to address this issue, thiophene-dicarboxylate spacer tethered are designed, and their molecular geometries further regulated via thiophene-core isomerism engineering, affording dimeric TDY-α with a 2, 5-substitution TDY-β 3, 4-substitution core. It shows that processes higher glass transition...
Abstract The acceptor-donor-acceptor (A–D–A) or A–DA’D–A structured small molecule acceptors (SMAs) have triggered substantial progress for polymer solar cells (PSCs). However, the high−cost of SMAs impedes commercial viability such renewable energy, as their synthesis via classical pyridine-catalyzed Knoevenagel condensation usually suffers from low reaction efficiency and tedious purifying work-up. Herein, we developed a simple cheap boron trifluoride etherate-catalyzed addressing this...
The operational stability of polymer solar cells is a critical concern with respect to the thermodynamic relaxation acceptor-donor-acceptor (A-D-A) or A-DA'D-A structured small-molecule acceptors (SMAs) within their blends donors. Giant molecule (GMAs) bearing SMAs as subunits offer solution this issue, while classical synthesis via Stille coupling suffers from low reaction efficiency and difficulty in obtaining mono-brominated SMA, rendering approach impractical for large-scale low-cost...
Abstract Organic solar cells (OSCs) are designed based on a blend of polymer donor and small molecular acceptor whereby the thermodynamic relaxation morphology raises concerns related to operational stability. Herein, it is demonstrated that classical Y6‐based binary device can be stabilized by using its derivative ZCCF3 as third component, which with replacing thiadiazole group Y6 trifluoromethyl substituted diazepine unit. delivers not only higher glass transition temperature ( T g ) than...
A practical and efficient method for selective intramolecular radical trifluoromethylacylation -arylation of alkenes with inexpensive CF3SO2Na K2S2O8 in aqueous media has been developed, respectively, affording the highly chemoselective synthesis CF3-functionalized chroman-4-ones chromanes satisfactory yields. Control experiments DFT calculations indicate that CF3SO2Na/K2S2O8 system is capable trifluoromethylating substrate without a transition metal catalyst oxidation to ·CF3 by involved...
A novel cyanine dye supramolecular assembly was designed to recognize mixed G-quadruplex in human telomeres.
The supramolecular assembly of a novel cyanine dye, 3,3′-di(3-sulfopropyl)-4,5,4′,5′-dibenzo-9-ethyl-thiacarbocyanine triethylammonium salt (ETC) was designed to verify specific intramolecular G-quadruplexes from duplex and single-strand DNAs. Spectral results have shown that ETC presented two major distinct signatures with in vitro: (i) dramatic changes the absorption spectra (including disappearance peak around 660 nm appearance independent new 584 nm); (ii) ∼70 times enhancement...
Polymer donors are a key component for high-performance polymer solar cells (PSCs), and the emergence of giant acceptors presents challenge in designing accessible that improve miscibility device performance. In this study, we developed series quinoxaline (Qx)-based polymers by introducing monosubstituted conjugated side chains employing noncovalent conformational locks to maintain backbone rigidity. This approach minimizes steric hindrance enhances molecular rigidity while simplifying...
This work demonstrates a simple, mild and efficient alkenyltrifluoromethylation of alkynes with readily available 2‐arylaminonaphthalene‐1,4‐diones Togni reagent as coupling partners. With both photosensitizers substrates, the title reaction proceeds smoothly in ethyl acetate under irradiation blue light, affording series CF3‐functionalized alkenes excellent regio‐ stereoselectivity. protocol features good tolerance functional groups, conditions, green solvent no involvement external...
Visible light-mediated cascade remote oxyfluoroalkylation of alkenes under mild conditions is developed for the first time. The key point this transformation incorporation alkene fluoroalkylation-initiated benzyl C–H bond activation via a 1,5-H shift in highly controlled site-selective manner and Kornblum reaction with dimethyl sulfoxide as oxidant. With method, broad array fluoroalkyl groups were introduced into double to produce 1,6-fluoroalkylated ketones at room temperature.
A simple and practical photochemical strategy for intermolecular perfluoroalkyl-alkenylation of alkenes with 2-amino-1,4-naphthoquinones perfluoroalkyl iodides has been demonstrated under visible-light irradiation. Mechanistic studies reveal that easily available 2-amino-1,4-naphthoquinone substrates can serve as efficient photosensitizers to activate through a photoredox process. Therefore, the developed radical relay reaction proceeds smoothly without additional transition metals photocatalysts.
We prove that O chiai similarity of the co‐occurrence matrix is equal to cosine in underlying occurrence matrix. Neither nor Pearson correlation should be used for normalization matrices because then normalized twice, and therefore overestimated; coefficient can instead. Results are shown using a small (5 cases, 4 variables) didactic reasons, also A hlgren et al.'s (2003) 24 authors library information sciences. The overestimation numerically will illustrated multidimensional scaling cluster...
A new fluorescent supramolecular self-assembly gelator (<bold>1</bold>) based on naphthalimide derivative with a tetrazole group was designed and synthesized, which could respond multiple analytes.
Engineered magnetic nanoparticles have been extensively explored for resonance imaging (MRI) diagnosis of a tumor to improve the visibility. However, most these display "always-on" signals without specificity, causing insufficient contrast and false positives. Here, we provide new paradigm MRI using MnCO3 nanorhombohedras (MnNRs) as an ultrasensitive T1-weighted agent, which smartly enhances MR signal in response microenvironment. MnNRs would quickly decompose release Mn2+ at mild acidity,...
Surfactant-free microemulsions (SFMEs) have shown great potential in many aspects such as chemical reactions and material preparation. Ionic liquid (IL)-based SFME is a promising member this family. However, switchable phase separation of nonaqueous IL SFMEs has not been reported up to now although it importance for the products recycling systems. Herein, new kind CO2-responsive composed quaternary ammonium IL, dimethyl sulfoxide, ethyl acetate developed. It worth noting that microemulsion...